Specs

Claims

(fuel controller recommended)

Delivers up to 8% gain in horsepower and torque depending on further upgrades effects

faster acceleration throughout the RPM range

higher top speed

higher rpm limit

improved throttle response

advanced ignition timing

Features

Altered ignition advance curves

Push button, on-the-fly programming

Precise 20 RPM adjustment steps

This tuner boasts a 10-year warranty

Microprocessor technology

Specs

Effect time: 20 ms

Economy: not affected

Emissions not affected

Working Theory

Get rid of factory rev / speed restrictions and augment the power potential of your fuel injected car. Magnum REV PRO BMW Alpina RPM limiter is a unique control device that has been designed to work with all vehicle PCM’s. Adjustable RPM limiting is provided by a microcontroller that selects the RPM in increments of 20 1/min throughout the rotational speed range. Limiting is accomplished by overriding the Electronic Engine Management’s base signal. Magnum Revolution Pro BMW Alpina CDI Box, is a programmable Voltage-Controlled Crystal Oscillator (VCXO) with uniquely extended frequency range that is designed to override the factory Performance CDI and the speed limiter in order to get rid of suffering factory rev / speed restrictions. As a beneficial side effect, it accelerates the injection timing that can only be exploited if the fuel trim is remapped as well. Apart from the higher top end needs, a fuel tuner is a must in conjunction with Magnum BMW Alpina rev limiter to ramp up engine engine performance and achieve maximum speeding up with fine throttle response. Magnum Performance CDI plugs into the factory ECU, specifically to the quartz oscillator that is soldered onto the Powertrain Control Module board which supplies the base signal for operation of the Engine management. With two push buttons you can easily raise or even drop the stock Rotational speed limit in a range of + / - 20%. This fully Adjustable BMW Alpina vehicle Performance CDI box neither affects engine reliability nor durability, unless you are racing or over-extending your engine.

An adjustable BMW Alpina RPM governor provides more precise control over ignition and RPM limit than the original components built in by the manufacturer. stock RPM limiter on EFI engines is a surveillance-software placed in Powertrain Control Module to restrict its maximum revolution. This is usually implemented to prevent damage to the power source. Sometimes Rev Limiter is applied to prevent an engine from reaching the point at which it develops maximum power. This may be useful in say a rental car but very vexing when fitted to racing or modded vehicles. factory Performance CDI works by interrupting the firing performance level that is distributed to the sparkplugs, this prevents the engine from operating above a preprogrammed revolution known as the red line limit. On stock engines the rotational speed level that results with the spark being arrested is assigned with a fixed rotational speed. REV-PRO BMW Alpina Performance CDI box can be adjusted quickly and easily to reach an even or a higher rpm range than the stock set in order to override factory top end limit. stock engines will be sluggish without fuel map settings recalibrate to work around or over the top rev. On upgraded vehicles where the engine produces power right up to redline, the increased rev limit will allow for peak horsepower and additional high-end performance capability.

This rev limiter is designed to fool the stock RPM / speed governor and enhance overall performance. It eliminates the stock rev limiter in order to reach higher top end speed. REV PRO rev limiter Vehicle specific BMW Alpina performance chips are sorted into numerous categories according to Engine computer types, base frequency range, etc. Rev-Pro is available to all vehicle engines controlled by Electronic Control Unit. If you can’t find the one applicable to yours, feel free to contact our Tech Support .

The powerful ammo your engine’s dormant horses have been starving for. REV PRO BMW Alpina Rev Governor eliminates the frustration of having the restrictive stock ignition cut out. The Programmable REV PRO Rev Box allows the owner to adjust both the ignition timing and the RPM limit. Our rev limiter is completely safe with any aspirated, turbo, supercharged or nitro vehicle engine and will not cause backfire or crossfire. This sturdy Rev Governor has been designed to operate in the presence of mechanical vibrations and high electrostatic ignition noise if any present.

Packing List

1 x REV-PRO unit

2 x bullet terminal

2 x zip tie

1 x fork connector

1 x heat shrink tubing

1 x flexible cable gland

1 x detailed installation instructions

h5Tasks committed by this rev limiter/h5

Identifies the frequency of factory quartz oscillator cicatrized in the ECU.

Backups the original frequency to a flash memory can be recalled at any time, if both push buttons are pressed simultaneously for couple seconds.

Generates the same frequency with absolute stability transmitted through the special coaxial cable.

According to frequency value, rev limit can be set with ultra fine increase and decrease steps.

As a manufacturer for over 22 years we have been standing behind our product line supplying our Customers with full Tech Support 7 days a week via emails. Our certified mechanics who are actively involved in racing and high performance tuning are eager to assist you.

Please read instructions before purchase.

REQUIRED SKILL LEVEL Medium Level Electronic Skill Required

REQUIRED TOOLS Special Tools Required

INSTALLATION TIME 60 up to 120 Minutes

Whether you are mechanical-minded or electronically inclined, you can install this REV PRO Do-It-Yourself with certain skills is assumed. Our step-by-step instructions will guide you through how to install your rev limiter in two hours or less. Prior to purchase, dismantle your ECU and check whether you are able to remove the silicon seal (if any) from inside and decide if you or your installer can conduct the setup. You'll need to access the factory quartz crystal. On gel-cast ECU’s the silicone removal process is not complex but takes a while. Removal can be done with the help of a heat gun and some paint thinner.

Steps

Start and allow the engine warm up until operating temperature reached.

Stop the engine and turn off the ignition key.

Find the Electronic Control Unit (ECU).

Disconnect the terminals.

Remove ECU's cover.

Locate the crystal oscillator (quartz) and solder it out.

Drill a hole onto the cover with diameter 8 mm (0,315"). Drill the hole at the most appropriate position to drive out the wire from the ECU.

Solder the original quartz oscillator to the pins inside the RPM control box (no polarity).

Ground the black wire to the engine frame or battery negative outside the ECU.

Slip in the black coaxial signal cable through the hole you drilled. Use the black flexible cable gland.

Find ECU ground (ECU case or that terminal prong which shows continuity to the engine frame or battery negative) and contact the black wire to that pad.

You have to find the quartz’s signal pad on the board, then solder the signal wire to either pad of the original quartz.

Crank the engine (timing is factory). If engine starts as normally, stop it and assemble the ECU. If engine doesn’t start, solder the grey signal wire to the other pad of the stock crystal oscillator, and retry.

Identifying the crystal oscillator within the ECU is very easy. You may find some sample images how they look like. If you are unsure feel free to contact our Product Specialists . h5Keep in mind that the crystals have no polarity./h5

Programming with one finger

Start and allow the engine to warm up until operating temperature reached.

Press button #1 (brown) to lower and #2 (blue) to increase the RPM limit. Rev up the engine and check the tachometer.

During the adjustment, the LED will be flashing proportionately with the frequency until the LED shuts down. When the LED has shut down, the minimum or maximum RPM threshold is reached.

If you want to restore factory timing and stock RPM limit, just press both push buttons simultaneously for at least 3 seconds.

Although Rev Pro Vehicle Rev Limiter works standalone, it is highly recommended that you wire up a fuel controller to the engine like EVO-Tech, Dyno-Boost or Smart-Tune prior to the installation in order to realize higher engine performance. A fuel controller will allow you to remap the fuel trim, this is a crucial adjustment in conjunction with advanced ignition implemented by REV-PRO. Without a fuel controller REV-PRO will not perform efficiently.

There is no risk of any damage to the engine or electrical parts, if the engine is used within reason. This Rev Limiter works in conjunction with your Vehicle's engine management and does not affect engine reliability or durability. Factory timing and limit can be reset at any time pressing both push buttons simultaneously for at least 3 seconds.

Rev Pro will not trigger the check engine light (CEL, MIL, FI, SES).

Carbureted engines are not applicable.

Prior to purchase, dismantle your ECU and check whether you are able to remove the silicon seal (if any) from inside and decide if you or your installer can conduct the setup. You'll need access to the factory quartz oscillator. We strongly recommend having a certified tech install this unit if the user does not have sufficient expertise.

Even though in tuning terminology the Rev Limiter is also referred to as a CDI Box, this performance module is not equivalent to a conventional aftermarket CDI (Capacitor Discharged Ignition) box wired up to the ignition coil. THIS IS NOT A REPLACEMENT FOR STOCK THE CDI BOX.

rev bypass module is the true answer

Local dealer wants an arm and a leg for unlocking the rev governor and this rev bypass module is the true answer. The product works as discribed but . . . I have to draw your intention to the difficulties of wiring. Read instructions attentively prior to going ahead with your order. Even though tech guys are eager to help, you still need knowledge and experience so buy without reluctance only afterward. They ship free and super fast.

20 of 26 people found this review helpful.

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absolutely astounded

I bought this limiter to my trailblazer and added smart chip to my setup: (removed) headers, performance coils and high intention spark plug wires from (removed) you can feel the power increase across the full power band width. My truck burns fuel better than my other stock chevy. It needed expertize but chip installs in fair amount of time. I was a lil skeptical but after tests I am absolutely astounded.

GREAT PRODUCT

I BOUGHT THE REV PRO FOR MY 1994 TOYOTA MR2 TO RAISE THE STOCK REV LIMITER FROM 7200 TO 8000RPM. THERE WAS AN INITIAL PROBLEM GETTING IT TO WORK AND IT NEEDED A MODIFICATION TO BREAK INTO THE TOYOTA SYSTEM.IT IS NOW WORKING PERFECTLY.THE TECHNICAL HELP WHICH I RECEIVED VIA EMAIL FROM THIS COMPANY WAS OUTSTANDING .THIS PRODUCT NOW WORKS WELL AND MAGNUM ARE AN EXCELLENT COMPANY TO DO BUSINESS WITH.I RATE THIS COMPANY AS OUTSTANDING IN ALL WAYS.

add 1300 extra rpm

although the cdi rpm limiter was shipped reasonable amount of time, set up damaged my crystal when welding to rev pro box, instructions were vague and they referred to web site high notes, took 2 weeks to get a new crystal and make the vehicel run again, setting allowed me to add 1300 extra rpm but i dont forgive the issue

1 of 2 people found this review helpful.

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am fine with setting, speed and performance

I could finally install the rev limiter on my off road freelander and am fine with setting, speed and performance my only complain is that you have to drill the computer and pigtail is not lon enough to drive the rev limiter boksz far from the computer for setting.

top quality item

Arrived safely in 3 days and no shipping was charged: generous bonus! Rev governor bypass works exactly as described. The only con would be the hookup kit that came with the unit. Power wires are too short and no fuse came with the package. I piggybacked the wire directly into the 12 gauge wire I ran from the firewall bulkhead connector to the unit. Aside from this minor minus magnum mods are top quality item. I have a whole line of these mods on my car and never had a problem with them

it raised red line limit as it said

I just installed my rev box and to me, it raised red line limit as it said and it did boost my performance. Increased the power between shifting over the original. The only flaws found wiring is tantamount to a computer repair, it should be kept in mind, unless you are technical minded you need to hire someone is proficient in this field. Technical suport is unparaleled and expect free shipping.

3 of 5 people found this review helpful.

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gained 9 extra miles

was a lil complex to hook up this CDI bypass to engine management but magnum specialists were very time-efficient and helpful. Finally I am happy I was talked into purchasing this rev gadget, I gained 9 extra miles and my x3 runs heap better than a 3.0L gasoline turbo.

rev limiter is an overall 5-star buy.

Bought this rev limiter to my GS430 is a beast until rpm is restricted by stock governor. I can tell i didn't regret, lightning fast shipping great communication awesome product highly recommend, magnum rev limiter is an overall 5-star buy.

Unleash the max performance potential of your vehicle and say goodbye to lean factory fuel programming with this adjustable fuel controller. Your performance chip tunes your engine with advanced fuel programming to harness your engine’s full power. The fuel tuner will add 15 % extra horsepower to your power plant without compromise of engine durability or reliability. Chip tricks signals being read by the ECU, resulting an adjustment to fuel curve, which is what causes increase in power, acceleration and throttle response across the RPM range.

Are you chasing after heaps extra horsepower? Augment the performance potential of your vehicle and say adios to lean factory fuel programming with this fuel controller. Extract race-inspired performance out of our performance chip box and save big bucks on fuel as a positive side-effect. If you decided to harness your vehicle’s full performance potential, get a heck of lot more power with this fuel tuner and remap the fuel trim in a blip.

With our ECU controller, your fuel maps receive an extensive recalibration that delivers horsepower and torque down to the wheels. The performance chip works to optimize the fuel trim for ultimate power and better fuel mileage. Smart Fuel Tuner fools engine sensor signals being read by the ECU, resulting in an adjustment to the fuel curve which causes the increase in power as well as improves acceleration and smoothes out throttle response through the RPM range.

Whether you want extra mid range horsepower and fuel consumption for your BMW Alpina or want to enjoy full potential of your Car Truck SUV, we've got your back. With a large array of specially built options, your Alpina will be the hottest around. BMW Alpina items are uniquely engineered for killer design and problem-free installation. These specifically crafted rev limiter are manufactured by magnum to fit your specific Alpina for simple installation. Take pride in your BMW and set it up with the best Alpina parts from Magnum Tuning. We focus on intelligent automotive technologies that improve our ability to find, develop and produce market leader rev limiters. We also invest in the development of renewable energy technologies, such as supporting bi-fueled engines and alternative fuel systems. Rest assured you mid range horsepower and fuel consumption changes are pulpable. Buy your magnum rev limiter today. The best what Alpina deserves.

BMW Alpina

Alpina CDI Box s are a rarity when it comes to your enthusiast since these tune-up upgrades were so hard to find before, but now you do not have any excuses for ignoring it. Let Magnum assist you while shopping and your Car be different! Choose BMW Revolution-PRO Rev Limiter today and get the benefits tomorrow. 7 skilled technicians at Magnum Manufacturer Tech Staff is looking forward to guide you. Get rush and take your top notch Alpina CDI Box today. There is no reason to wait until your BMW Alpina becomes retro, it is better to consistently update the equipment and you won't have any problems in the future. The best way to tackle all of that HP and RPM / top end speed is to install BMW Alpina CDI Box . Also do not miss to upgrade your acceleration with our part. Most people are intimidated when it comes to tampering with any part of a stock BMW, but definitely this is a safe an simple upgrade that has been proven and perfected to yield results. Alpina CDI Box simply installs to the Car part and modifies the ignition timing. This evaluation was emailed by Pruet, Hi, product as stated, fast shipment, instant communication concerning my needs. Really appreciated! Pleasure to do business AAAAA. Am very happy with the product. It was a Magnum Revolution-PRO Rev Limiter. Thanks Robert for helpful responses.